Balanced valve.



W. ORD.

BALANCED VALVE.

APPLIOATIUN FILED JUNE 12, 190s.

' 9195753, Patented Apr.27, 1909.

By g

' f -ATroH/vfjs WILLIAM oEDoF BROOKLYN, omo: i

' 'BALANCED VALVE.

e specincatin or Letter Patent.

.Patented April 27', 1909.

` Application mea-June 127, 190s. semi Nol 435,050.

To all whom it may concern: Be it known that I, XVILLIAM Onn, a citizen of the United States, and a resident of Brooklyn, in the county of Cuyahoga Iand State of Ohio, haveinvented a new and Improved Balanced Valve, of which the following is a full, clear, and exact description. v v

rPhis invention relates to stop valves, eln- 3. ployed vfor the control of high pressure flulds, and more particularly to. valves of the shell and plug type, which aord a straightway passage therethrough.'

The purpose of the invention is to pro-' g vide novel details of construction vfor a valve of the character indicated, which are simple, practical 'and very eiicient, and that enable the ,balancing of pressure on the body of the plug valve, will be prevented, and said valve bodybe adapted for convenient-adjustment -to control the passage ofuid therethrough.'

The invention consists in the novel construction and combination of parts, as is hereinafter described and ydefined inthe aPpended claims.

lReference is to be had lto the accompanying drawings .forming a part of this specification, in which similar characters of reference lndicate corresponding parts in both views.d y

4Figure l is a sectional side view of the improved valve, substantially on the line 1-1 of Fig. 2, and'Fig. 2 is a horizontal sectional View, substantially on the line 2-2 of Fig'.`1.

YThe body or shell 5 of the improved valve is given a coniform 4shape exteriorly, and in the shell a coniform bore a is formed. The borea, that is concentric with the exterior of the shell, is of greatest diameter .at the normally lower end a oi the latter, and

extends toward the smaller upperend thereof, having a smooth surface, that terminates at a2, Where a shoulder is-formed byva slight enlargement 'of the bore,^whic h diametrically enlarged bore Vextends from the shoulder faz to a point b, where it terminates in a flat transversewall b.

Centrall vin the wall Vacircular-opening' il, that extends toward the smaller c isf forme end' of the shell, and terminatesy a short distance from said transverse wall in a shoulder c', :formed by the diametrical enlargement c? of said circular opening, whichforms a.

' packing box that extends to the u is polygonal in so that leakage around the valve Y "gland, asis shown 111 Fig. 1. e threaded portion of the stem 9 a' Jam nut'lO. e is mounted, having-'a laterally-extended hanpper end wall c3 of the shell 5. The cylindrlcal wall gf the packing boxc is threaded `from `the outer`v` edge inwardly, and receives the exteriorlythreaded 'annular' gland d, where-l on isl formed a peripheral flange d', that contour and thus adapted for the reception of a wrench Near the center ofthe bore a, between its i ends, twosimilar opposite openings e, e are formed in the shel lengthwise ofthe shell and' Hare outwardly. The openings e, e are encircled by similar' branches 5a, 5 formed on the shell 5 and projecting oppositely therefrom. The branches 5 are cylindrical, and are internally threaded for the reception of the threaded ends Vof` similar tubes 7, 7, that are conduits for high pressure Huid, the flow of which is controlled by the valve in complete form.

In the coniform bore a is neatly tted lthe coniforinbody 8 of a lug-valve, that should be ground therein and thus, rendered steam' and water tight. is proportioned to the depth of the coniform 'bore vat in the shell `5, between the lower end a and the shoulder a2, so that it will leave a shallow space between its at lower end and the lower end a of the shell, when the upper e'nd of said plug-valve is flush with the shoulder a?, as is shown in Fig. 1.;

' A longitudinally -elongated opening g is formed 1n the plug-valve body 8, an corresponds in dimensions with those of the openings e, e, and is'so relatively positioned that the opening in the plug may be alined with vsaid openings e, e, and thus produce a straightway passage through the valve-shell and the plug` therein. .Y An 'elongated cylindrical stem 9 1s ex- 5-, which are elongated The length of the plug "8 tended from the longitudinal center of the i plug valve body 8, at the smaller end thereof, and passes up throu h the o emng' 0,-' packing boxe2 and glan d. `In t ejbox c2 a suitable packing l1. is placed and closed around the stem 9 by a proper ad] ustment of the gland d.' The stem 9 projects outslde of the gland d., and is threaded on said'port'ion, thethread extending somewhat within the Upon the dle 10l thereon, which enables the adjusts ment of'said nut. The outer endf ortion la 2() 4 l screwed. In the` ortio'n of the plug valve sage g therein, a-.vertical perforation o isl held with vwall ofthe dotted lines in Fig. 2, and upon said an larl -shaped end of the stem a cross han e 11 1s fitted. In the end of the stem'9, at its center, a -perforation is longitudinall formed, which is tapped to thread its wa and in the perforation a clamping screw 12 is inserted, first passing through a washer m, that is clamped by means of said screw upon the stem and handle, thus securing the latter on saidstem.

. The exterior surface of the shell`5, at or near its lower end a', is threaded, and upon said threaded end a cap piece 13 is screwed, the latter having a peripheral fla e n thereon, which is interiorly` threaded or anengagement with the end of the shell 5, that 1s thushermetically sealed, as shown in Fig. 1. The cap-piece 13 is centrally perforated and threaded in the erforation, wherein the threaded upper enti) of a pet-cock 14 is body 8, which is elow the transverse pasformed, that affords a communication' between the passageg and a shallow cavity n',

'formed betweemthe lower end o of the plug valve body 8 and the cap piecel. In the portion of the plug valve body 8 that extends above the transverse passage g therein, preferably two vertical perforations p are ormed, thesel perforations connecting the passage g with a chamber 1', that is formed between the upper end of the plug body 8 and the flat bottom wall b of the bore a in the shell 5.- In the shell 5, opposite the I chamber 1', a threaded perforation 1s formed, vwherein a removable screw 15 is fitted, and

normally the iat head of the said screw4 has flilngtight contact with the'side wall of the s e To adapt the valve for service, the motive fluid-conduits 7, 7 are respectively extended and connected with a source of high pressure motive fluid, and to mechanism that is to'be actuated by the motive fluid. Assuming that the Aconditions for service are completed, it will be evident that as the motive agent has contact with each end of the plug valve 8, when the valve is opened the res sure thereon will be nearly equal,an the -valve may be readily turned in the shell 5 for closure of the same. When closed, the pressure of the motive fluid on one side of the plug valve 8,4 owing to the taper of the latter, will have a tendency to 4loosen said plug valve and cause a leakage of said motive agent around the latter. To prevent "this, the nut 10 is tightened upon the gland d. while the cross handle/11 is held from turnin and it will be seen .that .this adjustment o thenut 10, by means of the lever-handle 10a thereon, will secure the plug valve so that it will be roper pressure on theconiform Pbore a in the shell 5. l The chamber 1' serves as a receiver for the internally threaded lubricant that may be introduced throug 1 the opening that is normally closed by tie sealing plug 15, the liquid lubricant passing down through the passages p into the trans- Verse duct `g, and thence into the crevice between the plug-valve and the shell, for a lubrication of the surfaces thereof. It will be noted that the passage o affords a duct through which condensed liquid from the pipes 7 may be removed by opening the petcock 14 from time to time, as may be found necessary.

It will be obvious that the plug valve body 8 may be round upon its seat successively by its rotation in the shell 5, through the medium of the cross-handle 11, and wear on said .valve be compensated for, so that the valve will remainA iiuid tight after years of service, under the extremes of high and low pressure. e

The simplicity and practical nature of the improved valve are advantageous features, and enable its manufacture without requir; ing the provision of a costly, special equipment of tools, in a` rapid, perfect manner at a moderate cost. Furthermore, the `improved valve may be produced in sizes to suit the different standard calibers of pipes, from large to small, and be equally serviceable as a controlling means in gas, water or steam service.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. Avalve of the character described, comprising a shell having its lower end externally screw threaded and provided with a coniform bore leading out through the lower end of the shell, the upper end of the bore` being enlarged, a vertical opening leading from the enlargement of the bore out through the upper end of the shell, a lateral opening leading from said enlargement of the bore out through the side of the shell, and oppositely varranged branches having elongated open-- ings leadingvinto the said bore, a coniform plug valve having a plain lower end and provided with an elongated transverse opening, openings leading from the transverse opening through the ends of the valve, and a stem projecting from its upper face and provided with a handle, the valve ittin in the bore with its lower end iush with t e lower end of the shell and its upper end flush with the shoulder formed by the enlargement of the bore and having its stem extendin out through the upper end of the shell, a c osure for the lateral opening of the enlarged end of the bore, and a ca having a peripheral an e screwed on the lower end-of the shell an forming with the lower end of the shell and the lower end of the pliig valve, a chamber, said ca being centrally apertured and a valve for t e aperture of the cap.

threaded and 2. A valve of the character described, com prising a coniform shell, having a coniform bore therein that extends partly throu h the shell, terminating ina transverse wal said wall being centrally perforated, the shell at its smaller end having a packing space that intersects the perforation and an 'internal thread, an annular threaded -land screwed into said thread, a coniform pIug valve having a iiat surface at its larger end, and lit-ted fluid tight into t-he coniform bore, the plug valve being spaced from the upper end Wall of the coniforin bore, forming a chamber, two cylindrical branches that are lnternally shell, said shell having opposite openings therein that register with the branches, the plug valve having a transverse passage thereprojected oppositely from the i through that may register with the openings in the shell, a capspiece screwing on the larger end of the shell, leaving a cavity below it, 'a pet-cock thereon, the plug valve having a perforation therethrough extended from the transverse passagetoward the petcock, and also having a perforation in the upper end thereof between the chamber and the transverse passage, ajam nut on the stein, and a cross-handle thereon for turning the plug valve.

In testimony'l whereof I have naine to this specification two subscribing Witnesses.

. WILLIAM ORD.

signed my in the presence of Witnesses v JOHN SHANKLAND, RAY W, LUNN. 

